OK - no matter if you like the spoiler or not - here is how it mounts (or dismounts) . It comes with a template that you drill NINE holes into the rear of your car to mount. The spoiler came in perfect shape, perfect paint and shipped nicely. The instructions just tell you to see the service system bulletins to install, but it's a no brainer as they give you a durable plastic template to drill. From GMpartsdirect.com